InvoraOwnware
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About
Invora is self-hosted invoicing software you buy once and own: estimates that convert to invoices, full or partial payment recording, branded PDF invoices, client records, VAT handling, multi-currency, and recurring invoice schedules. Integrations: REST API with Bearer keys, HMAC-signed webhooks, and an MCP endpoint so Claude, ChatGPT agents or n8n can operate it under the same role permissions as a signed-in user — sending email and deletion always stay human clicks. Append-only audit trail (CSV-exportable, secrets redacted), GDPR subject-access export and anonymisation, roles with invitations, guided backups and restore. Plain PHP 8 with MySQL or SQLite — no framework, no Composer, no build step; the full test suite ships with the source and is proven on SQLite, MariaDB and MySQL 8. One-time purchase from $34 with full source code included; no subscriptions, no per-user fees. Ungated live demo on the product page.
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About
KairoProject is a multi-project portfolio management platform built natively on Critical Chain Project Management (CCPM) and Theory of Constraints. If your teams are drowning in conflicting deadlines, hidden resource overload, and planning tools that track tasks but never tell you what's actually at risk, KairoProject was built for that problem.
Instead of bolting buffers onto a generic Gantt chart, the engine is CCPM from the ground up: critical chain calculation, project and feeding buffers, fever charts, and real-time buffer consumption tracking — all deterministic and rule-based, so your numbers are always trustworthy. An AI layer sits on top to help you interpret signals, not to second-guess the math.
See exactly which resources are overloaded across your entire portfolio, which tasks are truly on the critical chain, and which projects need attention today — not after the deadline slips. REST API, MCP connector, and HMAC-signed webhooks let you plug it into your existing stack.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Small businesses, freelancers and agencies that want to own their invoicing stack instead of renting SaaS
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Audience
KairoProject is designed for operations directors, project managers, and portfolio managers who oversee multiple simultaneous projects with shared teams and limited resources. It is particularly suited for engineering firms, technical consultancies, R&D departments, and project-driven SMEs running between 3 and 20 concurrent projects. It is not a task management tool — it is built for organizations where cross-project resource conflicts, late deliveries, and prioritization decisions are daily challenges.
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$34 one-time
One-time purchase from $34 (single site). Developer and agency licenses available. Full source code included. No subscriptions, no per-user fees.
Free Version
Free Trial
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Pricing
10€/month/user
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationOwnware
Founded: 2026
Slovakia
ownware.io/p/invora
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Company InformationKairoProject
Founded: 2025
France
www.kairoproject.com
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Categories |
Categories |
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Billing and Invoicing Features
Billing Portal
Contact Database
Contingency Billing
Customer Portal
Customizable Invoices
Dunning Management
Hourly Billing
Invoice History
Mobile Payments
Multi-Currency
Online Invoicing
Online Payments
Payment Processing
Project Billing
Recurring/Subscription Billing
Service Ticket Billing
Tax Calculator
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Project Management Features
Agile Methodologies
Budget Management
Client Portal
Collaboration Tools
Cost-to-Completion Tracking
Customizable Templates
Gantt Charts
Idea Management
Kanban Board
Milestone Tracking
Portfolio Management
Resource Management
Time & Expense Tracking
Traditional Methodologies
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